Contacts of the strand formed by residues 321 - 324 (chain D) in PDB entry 2DB3
Residue contacts within the protein are
derived with the CSU software (Sobolev V., Sorokine A.,
Prilusky J., Abola E.E. and Edelman M. (1999) Automated
analysis of interatomic contacts in proteins.
Bioinformatics, 15, 327-332). A
short description of the analytical approach
is given at the end of the page.
Note:
Non-standard 3 letter residue
codes indicate a heterogroup. To identify
and analyse, use LPC software
Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC - hydrophobic-hydrophilic contact (destabilizing contact)
+/- - indicates presence/absence of a specific contacts
* - indicates residues forming contacts by their side chain
(including CA atoms)
Residues in contact with VAL 321 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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303D ILE* 3.7 30.7 - - + -
307D LEU* 4.0 21.1 - - + -
319D PRO* 3.4 4.7 - - - +
320D GLN* 1.3 85.6 - - - +
322D VAL* 1.3 67.9 + - - +
323D ILE* 3.9 17.7 - - + -
370D HIS 3.1 3.2 + - - +
371D VAL* 3.6 23.2 - - + -
372D VAL 3.0 24.3 + - - -
393D THR* 4.6 0.4 - - - +
395D PHE* 3.2 27.8 - - + +
397D VAL* 4.9 0.7 - - + -
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Residues in contact with VAL 322 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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319D PRO* 4.2 11.0 - - + -
321D VAL* 1.3 79.0 - - - +
323D ILE* 1.3 58.6 + - - +
324D VAL* 4.1 12.3 - - + -
372D VAL* 3.5 9.2 - - + +
374D ALA* 5.6 0.9 - - + -
379D LEU* 4.0 29.2 - - + -
390D PHE* 3.5 29.8 - - + -
393D THR* 3.8 18.6 - - + +
395D PHE 2.8 11.5 + - - +
396D VAL* 3.4 11.9 - - + +
397D VAL 2.8 32.6 + - - +
416D ILE* 5.1 4.0 - - + -
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Residues in contact with ILE 323 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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299D PHE* 4.0 15.7 - - + -
300D LEU* 3.7 27.4 - - + -
303D ILE* 5.5 1.1 - - + -
321D VAL* 3.9 14.6 - - + -
322D VAL* 1.3 78.3 - - - +
324D VAL* 1.3 71.0 + - - +
334D ILE* 4.3 15.7 - - + -
371D VAL* 4.1 9.2 - - + -
372D VAL 2.9 8.3 + - - +
373D ILE* 3.3 33.9 - - + +
374D ALA* 2.8 27.7 + - - +
397D VAL* 3.3 29.4 - - + -
399D ASP* 5.0 1.1 - - + -
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Residues in contact with VAL 324 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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322D VAL* 4.1 17.9 - - + -
323D ILE* 1.3 79.5 - - - +
325D SER* 1.3 66.3 + - - +
374D ALA 3.2 9.6 - - - +
376D PRO* 3.8 15.9 - - + -
379D LEU* 4.4 13.5 - - + -
396D VAL* 5.9 2.5 - - + -
397D VAL 2.9 8.0 + - - +
398D LEU* 4.1 21.5 - - + -
399D ASP* 3.2 31.0 + - - +
404D MET* 3.2 28.0 - - + -
413D MET* 4.1 10.5 - - + -
416D ILE* 4.8 7.0 - - + -
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A short description of the
analytical approach
The contact analysis used in this page
is based upon the approach
developed in:
Sobolev V., Wade R.C., Vriend G.
and Edelman M. PROTEINS (1996)
25, 120-129.
Contact legitimacy depends on the hydrophobic-hydrophilic
properties of the contacting atoms. In order to
define it, for each inter-atomic contact,
eight atom classes have been introduced:
I Hydrophilic - N and O that can donate and accept hydrogen bonds
(e.g., oxygen of hydroxyl group of Ser. or Thr)
II Acceptor - N or O that can only accept a hydrogen bond
III Donor - N that can only donate a hydrogen bond
IV Hydrophobic - Cl, Br, I and all C atoms that are not in
aromatic rings and do not have a covalent bond to
a N or O atom
V Aromatic - C in aromatic rings irrespective of any other
bonds formed by the atom
VI Neutral - C atoms that have a covalent bond to at least one
atom of class I or two or more atoms from class II
or III; atoms; S, F, P, and metal atoms in all cases
VII Neutral-donor - C atoms that have a covalent bond with only one
atom of class III
VIII Neutral-acceptor - C atoms that have a covalent bond with only
one atom of class II
For each pair of contacts the state of legitimacy
is shown below:
Legend:
+, legitimate
-, illegitimate
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Atomic class I II III IV V VI VII VIII
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I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
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Warning!
Atom classes for heterogroups are automatically
assigned based on the atomic coordinates. However, in
three cases (see below) the automatic assignment
is currently ambiguous. In these
cases, the user is advised to manually analyse
the full list of contacts using
LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are
considered "aromatic" (Class V) if the ring is approximately
planar, and "hydrophobic" (Class IV) or "neutral" (Classes
VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
"hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
"carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).
Please E-mail any
questions and/or suggestions concerning this page to
Vladimir.Sobolev@weizmann.ac.il